Here is how it should be handled.
At every one of these things there are a few just outside of those protests giving directions. They are generally on their phones and all that getting instructions from the “top” as what to do.
Grab them and you dismantle the whole thing.
Lara Logan pointed out earlier that the leaders are usually dressed in black, wear back-packs and have vehicles with extra antennae like law enforcement. To me that indicates centralized coordination backed by a lot of money.